Podcast
Questions and Answers
Which of the following is a property common to all wood?
Which of the following is a property common to all wood?
- Organic composition
- Anisotropy (correct)
- Susceptibility to decay
- Hygroscopicity
What is the main function of xylem tissue in wood?
What is the main function of xylem tissue in wood?
- Conducts sap downward from the leaves to the roots
- Conducts sap upward from the roots to the leaves (correct)
- Provides mechanical support to the whole tree
- Stores food in the form of carbohydrates
Which of the following is NOT a cell that makes up wood?
Which of the following is NOT a cell that makes up wood?
- Sclerenchyma cells
- Phloem cells (correct)
- Xylem cells
- Parenchyma cells
What is the primary cause of decay in wood?
What is the primary cause of decay in wood?
What comes to mind when you think of the word 'wood'?
What comes to mind when you think of the word 'wood'?
Which type of trees produce hardwood?
Which type of trees produce hardwood?
Which type of trees produce softwood?
Which type of trees produce softwood?
What is the main difference between hardwood and softwood?
What is the main difference between hardwood and softwood?
What is the dominant feature that separates hardwoods from softwoods?
What is the dominant feature that separates hardwoods from softwoods?
Which type of hardwood may not show annual growth rings?
Which type of hardwood may not show annual growth rings?
Flashcards
Anisotropy of Wood
Anisotropy of Wood
The property of wood that makes its strength and other properties vary depending on the direction of the force applied. Think of the different directions you can cut wood.
Xylem in Wood
Xylem in Wood
Xylem is a type of specialized tissue in plants that transports water and nutrients from the roots to the leaves.
Phloem cells in Wood
Phloem cells in Wood
Phloem cells are responsible for transporting sugars and other nutrients throughout the plant.
Wood Decay
Wood Decay
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Hardwood
Hardwood
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Softwood
Softwood
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Hardwood vs. Softwood: Pores
Hardwood vs. Softwood: Pores
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Tropical Hardwood Growth Rings
Tropical Hardwood Growth Rings
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Study Notes
Wood Properties
- All wood has a common property: it is a natural, organic, and heterogeneous material.
Xylem Tissue
- The main function of xylem tissue in wood is to transport water and minerals from the roots to the leaves.
Wood Cells
- The following cells make up wood: tracheids, vessels, xylem parenchyma, and xylem sclerenchyma.
- Epithelial cells do not make up wood.
Wood Decay
- The primary cause of decay in wood is fungal infection.
Connotations of 'Wood'
- The word 'wood' often evokes images of trees, forests, and natural environments.
Hardwood and Softwood
- Deciduous trees produce hardwood.
- Coniferous trees produce softwood.
- The main difference between hardwood and softwood is the type of tree that produces them.
- Hardwoods have broad leaves, while softwoods have needle-like leaves.
Hardwood Characteristics
- Hardwoods are typically denser and heavier than softwoods.
- Balsa wood is a type of hardwood that may not show annual growth rings.
- The dominant feature that separates hardwoods from softwoods is the presence of vessels in hardwoods.
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